@arcjet/next
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@arcjet/next
Arcjet helps developers protect their apps in just a few lines of code. Implement rate limiting, bot protection, email verification & defend against common attacks.
This is the Arcjet SDK for the Next.js framework.
Looking for our Node.js SDK? Check out the
@arcjet/node package.
Visit docs.arcjet.com to get started.
npm install -S @arcjet/next
The Arcjet rate limit example below applies a token bucket rate limit rule to a route where we identify the user based on their ID e.g. if they are logged in. The bucket is configured with a maximum capacity of 10 tokens and refills by 5 tokens every 10 seconds. Each request consumes 5 tokens.
See the Arcjet rate limit documentation for details.
import arcjet, { tokenBucket } from "@arcjet/next";
import { NextResponse } from "next/server";
const aj = arcjet({
key: process.env.ARCJET_KEY!, // Get your site key from https://app.arcjet.com
rules: [
// Create a token bucket rate limit. Other algorithms are supported.
tokenBucket({
mode: "LIVE", // will block requests. Use "DRY_RUN" to log only
characteristics: ["userId"], // track requests by a custom user ID
refillRate: 5, // refill 5 tokens per interval
interval: 10, // refill every 10 seconds
capacity: 10, // bucket maximum capacity of 10 tokens
}),
],
});
export async function GET(req: Request) {
const userId = "user123"; // Replace with your authenticated user ID
const decision = await aj.protect(req, { userId, requested: 5 }); // Deduct 5 tokens from the bucket
console.log("Arcjet decision", decision);
if (decision.isDenied()) {
return NextResponse.json(
{ error: "Too Many Requests", reason: decision.reason },
{ status: 429 },
);
}
return NextResponse.json({ message: "Hello world" });
}
Arcjet Shield protects your application against common attacks, including the OWASP Top 10. It’s enabled by default and runs on every request with negligible performance impact.
See the Arcjet Shield documentation for details.
import arcjet from "@arcjet/next";
import { NextResponse } from "next/server";
const aj = arcjet({
// Get your site key from https://app.arcjet.com
// and set it as an environment variable rather than hard coding.
// See: https://nextjs.org/docs/app/building-your-application/configuring/environment-variables
key: process.env.ARCJET_KEY,
rules: [], // Shield requires no rule configuration
});
export async function GET(req: Request) {
const decision = await aj.protect(req);
if (decision.isDenied()) {
return NextResponse.json(
{ error: "Too Many Requests", reason: decision.reason },
{ status: 429 },
);
}
return NextResponse.json({ message: "Hello world" });
}
Reference documentation is available at docs.arcjet.com.
Licensed under the Apache License, Version 2.0.
1.0.0-alpha.9 (2024-03-04)
withRule API for adding adhoc rules (#245) (f8ebbdc), closes #193FAQs
Arcjet SDK for the Next.js framework
The npm package @arcjet/next receives a total of 2,383 weekly downloads. As such, @arcjet/next popularity was classified as popular.
We found that @arcjet/next demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 2 open source maintainers collaborating on the project.
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